Package org.apache.hadoop.yarn.server.resourcemanager

Class NodesListManager.CachedResolver

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.yarn.server.resourcemanager.NodesListManager.CachedResolver

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.apache.hadoop.service.Service, NodesListManager.Resolver

Enclosing class:

NodesListManager

@VisibleForTesting
public static class NodesListManager.CachedResolver
extends org.apache.hadoop.service.AbstractService
implements NodesListManager.Resolver

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Constructor Summary

Constructors

Constructor	Description
CachedResolver(org.apache.hadoop.yarn.util.Clock clock, int expiryIntervalSecs)

Method Summary

Modifier and Type	Method	Description
void	addToCache(java.lang.String hostName, java.lang.String ip)
java.util.TimerTask	getExpireChecker()
void	removeFromCache(java.lang.String hostName)
java.lang.String	resolve(java.lang.String hostName)
protected void	serviceStart()
protected void	serviceStop()

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, serviceInit, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CachedResolver

public CachedResolver(org.apache.hadoop.yarn.util.Clock clock,
                      int expiryIntervalSecs)

Method Detail

serviceStart

protected void serviceStart()
                     throws java.lang.Exception

Overrides:

serviceStart in class org.apache.hadoop.service.AbstractService

Throws:

java.lang.Exception

serviceStop

protected void serviceStop()
                    throws java.lang.Exception

Overrides:

serviceStop in class org.apache.hadoop.service.AbstractService

Throws:

java.lang.Exception

addToCache

@VisibleForTesting
public void addToCache(java.lang.String hostName,
                       java.lang.String ip)

removeFromCache

public void removeFromCache(java.lang.String hostName)

resolve

public java.lang.String resolve(java.lang.String hostName)

Specified by:

resolve in interface NodesListManager.Resolver

getExpireChecker

@VisibleForTesting
public java.util.TimerTask getExpireChecker()